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不连续平面分段线性系统的两点和四点极限环
李争康()
Two-Point and Four-Point Limit Cycles in Discontinuous Planar Piecewise Linear Systems
Li Zhengkang()

图 1. 系统具有不规则折线边界的示意图. (a) 折线夹角为 $\gamma\in (0,\pi)$$\gamma\neq\frac{\pi}{2}$. (b) 折线夹角 $\gamma=\frac{\pi}{2}$.

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